CN114988327B - Replacement device and replacement method for roller changing vehicle driving system - Google Patents
Replacement device and replacement method for roller changing vehicle driving system Download PDFInfo
- Publication number
- CN114988327B CN114988327B CN202210711065.1A CN202210711065A CN114988327B CN 114988327 B CN114988327 B CN 114988327B CN 202210711065 A CN202210711065 A CN 202210711065A CN 114988327 B CN114988327 B CN 114988327B
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- Prior art keywords
- driving system
- changing
- support piece
- supporting
- roller changing
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
- B66F7/16—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks
- B66F7/18—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks by a single central jack
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
Abstract
The invention discloses a replacement device and a replacement method for a roller changing truck driving system, relates to the technical field of auxiliary equipment of rolling mills, and solves the technical problems that in the related art, when the roller changing truck driving system is overhauled, the overhauling time is long, and the hoisting and the transporting have great potential safety hazards. In this change device, the bottom that two intervals set up first support piece all is provided with a plurality of first walking wheels, second support piece is connected between two first support pieces, third support piece interval sets up in the below of second support piece, third support piece bottom is provided with a plurality of third walking wheels, automatically controlled elevating system is vertical to be connected between second support piece and third support piece, walking actuating mechanism installs in third support piece, walking actuating mechanism walks with the drive at least a pair of third walking wheel. The safety device has the advantages of convenience in maintenance and high working efficiency, personnel investment is reduced, the safety accident risk possibly caused by excessive fatigue of personnel is reduced, and the operation safety is improved.
Description
Technical Field
The invention relates to the technical field of auxiliary equipment of rolling mills, in particular to a replacement device and a replacement method for a roller changing vehicle driving system.
Background
A roll changing vehicle of a pickling continuous rolling mill belongs to production line key control equipment, and the stability of the roll changing vehicle indirectly restricts the quality of products and the production continuity of the production line. Because the driving wheel of the roller changing vehicle is positioned below the horizon, the space position is narrow, and no overhaul space exists at all in the working position. And the roller changing vehicle driving system has a complex structure, the main driving shaft of the large vehicle is an integral structural member, the overhead crane lifting equipment cannot be normally used above the main driving shaft for direct lifting and transporting operation, the transporting operation can only be completed by means of manpower by utilizing the repeated operation of the chain block, a large amount of maintenance time is required in the process, and meanwhile, great potential safety hazards exist in the repeated lifting operation.
Disclosure of Invention
The application provides a replacement device and a replacement method for a roller changing truck driving system, which solve the technical problems that in the related art, when the roller changing truck driving system is overhauled, the overhauling time is long, and the hoisting and the transportation have great potential safety hazards.
The application provides a change device for roll changing truck actuating system, including two first support pieces, second support piece, third support piece, automatically controlled elevating system and travel drive mechanism, two first support piece interval sets up, first support piece has all been seted up and is used for holding the vertical through-hole of displacing roll changing truck actuating system's wheel, first support piece bottom all is provided with a plurality of first traveling wheels, second support piece is connected between two first support pieces, second support piece is higher than first support piece setting, third support piece interval sets up in the below of second support piece, third support piece bottom is provided with a plurality of third walking wheels, automatically controlled elevating system vertical connection is between second support piece and third support piece, travel drive mechanism installs in third support piece, travel drive mechanism is used for driving at least a pair of third walking wheels walking, second support piece is used for contacting with roll changing truck actuating system's reducing gear box bottom side.
Optionally, the walking drive mechanism includes:
the driving motor is arranged on the third supporting piece;
umbrella-shaped teeth which are in driving connection with a driving motor; and
the transmission shaft is meshed with the umbrella-shaped teeth and is in transmission connection with a pair of third travelling wheels.
Optionally, the electric control lifting mechanism comprises a hydraulic jack, wherein the bottom end of the hydraulic jack is installed on the third supporting piece, and the top end of the hydraulic jack is fixedly connected with the second supporting piece.
Optionally, the replacing device is further provided with a pulley assembly, and two sides of the second supporting piece are respectively connected with the two first supporting pieces through the pulley assembly.
Optionally, the pulley assembly comprises:
the first bracket is fixedly arranged on the first supporting piece;
the first fixed pulley is arranged on the first bracket;
the second bracket is fixedly arranged on the second supporting piece;
the second fixed pulley is arranged on the second bracket; and
and two ends of the rigid connecting rod are respectively and rotatably connected with the first fixed pulley and the second fixed pulley.
Optionally, the horizontal cross section of the vertical through hole is rectangular, and the size of the vertical through hole is larger than that of the horizontal cross section of the wheel.
Optionally, the electric control lifting mechanism further comprises a base mounted at the bottom of the hydraulic jack, and the base is mounted on the third supporting piece.
Optionally, the first support members are each provided with a first pulling hole at the front end.
Optionally, the third support is provided with a third pulling hole at the front end.
The replacement method for the roller changing vehicle driving system comprises the replacement device, and the replacement method comprises the following steps: lifting the roller changing truck to an overhaul platform, and moving the replacing device to the lower part of the overhaul platform;
after the replacing device is moved below the overhauling platform, the second supporting piece is propped against a reduction gearbox of the roller changing vehicle driving system through the electric control lifting mechanism;
after the second supporting piece is propped against the reduction gearbox, the roller changing vehicle driving system is detached from other mechanisms of the roller changing vehicle;
after the roller changing vehicle driving system is disassembled, the second supporting piece is lowered through the electric control lifting mechanism, the roller changing vehicle driving system is lowered, and wheels of the roller changing vehicle driving system are lowered to the vertical through holes of the first supporting piece;
after the roller changing truck driving system falls down, the walking driving mechanism works, so that the replacing device and the roller changing truck driving system are moved away from the overhauling platform.
The beneficial effects of the application are as follows: the application provides a replacement device for a roller changing vehicle driving system, the roller changing vehicle driving system generally comprises wheels, wheel shafts, reduction boxes, motors, chassis, bearing seats and the like, the roller changing vehicle is generally moved to a maintenance platform or a support frame during maintenance, the replacement device is moved to the lower part of the roller changing vehicle driving system, an electric control lifting mechanism acts to enable second supporting pieces to contact the reduction boxes, then fixing bolts on two sides of the wheels and near the reduction boxes are removed, the roller changing vehicle driving system is separated from other mechanisms of the roller changing vehicle, then the electric control lifting mechanism acts again to enable the roller changing vehicle driving system to descend along with the second supporting pieces, so that the roller changing vehicle driving system is separated from other mechanisms of the roller changing vehicle in space, and the roller changing vehicle driving system is subsequently separated from the other mechanisms of the roller changing vehicle under the operation of a travelling driving mechanism, thereby being beneficial to providing convenient maintenance space; in addition, the replacing device also provides two first supporting pieces for the wheels of the roller changing truck driving system, and particularly, a vertical through hole for accommodating the wheels is formed in the first supporting pieces, and the first supporting pieces are matched with the second supporting pieces to provide enough supporting surface areas for the roller changing truck driving system, so that the replacing device has the advantages of stable movement and high reliability; to sum up, through this change device, overcome originally because the structure is complicated and adopt the chain to hoist and mount the defect that the operation time that the transportation exists is long, the potential safety hazard is big of transporting repeatedly, have convenient maintenance and advantage that work efficiency is high, still reduced personnel's input, reduced the incident risk that personnel's overfatigue probably leads to again, improved the operation security.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention.
FIG. 1 is a front view of a change device for a roll changing truck drive system provided herein;
fig. 2 is a top view of the structure shown in fig. 1.
The drawings are marked: 100-first supporting piece, 110-vertical through hole, 120-first travelling wheel, 130-first pulling hole, 200-second supporting piece, 300-third supporting piece, 310-third travelling wheel, 320-third pulling hole, 400-electric control lifting mechanism, 410-hydraulic jack, 420-base, 500-travelling driving mechanism, 510-driving motor, 520-umbrella-shaped tooth, 530-transmission shaft, 600-pulley assembly, 610-first bracket, 620-first fixed pulley, 630-second bracket, 640-second fixed pulley and 650-rigid connecting rod.
Detailed Description
According to the replacing device and the replacing method for the roller changing vehicle driving system, the technical problems that in the related art, when the roller changing vehicle driving system is overhauled, overhauling time is long, and a great potential safety hazard exists in hoisting and transporting are solved.
The technical scheme in the embodiment of the application aims to solve the technical problems, and the overall thought is as follows:
the utility model provides a change device for changing roller car actuating system, including two first support piece, second support piece, third support piece, automatically controlled elevating system and travel drive mechanism, two first support piece interval sets up, first support piece has all been seted up and is used for holding the vertical through-hole of replacing roller car actuating system's wheel, first support piece bottom all is provided with a plurality of first traveling wheels, second support piece is connected between two first support pieces, second support piece is higher than first support piece setting, third support piece interval sets up in the below of second support piece, third support piece bottom is provided with a plurality of third walking wheels, automatically controlled elevating system vertical connection is between second support piece and third support piece, travel drive mechanism installs in third support piece, travel drive mechanism is used for driving at least a pair of third walking wheel walking, second support piece is used for with changing roller car actuating system's reducing box bottom side contact.
In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.
Example 1
Referring to fig. 1 and 2, the present embodiment discloses a replacing device for a roller changing vehicle driving system, which includes two first supporting members 100, a second supporting member 200, a third supporting member 300, an electrically controlled lifting mechanism 400 and a traveling driving mechanism 500.
In detail, the two first supporting members 100 are spaced apart, and the second supporting member 200 is connected between the two first supporting members 100, i.e., in the form that one first supporting member 100, the second supporting member 200, and the other first supporting member 100 are sequentially connected. The third supporting members 300 are arranged below the second supporting members 200 at intervals, the electric control lifting mechanism 400 is vertically connected between the second supporting members 200 and the third supporting members 300, and the electric control lifting mechanism 400 is controlled to realize the height lifting operation of the second supporting members 200.
And, the bottom of the first supporting member 100 is provided with a plurality of first travelling wheels 120, the bottom of the third supporting member 300 is provided with a plurality of third travelling wheels 310, the travelling driving mechanism 500 is mounted on the third supporting member 300, and the travelling driving mechanism 500 drives at least one pair of third travelling wheels 310 to travel, so as to drive the whole replacing device to move.
The first supporting pieces 100 are respectively provided with a vertical through hole 110 for accommodating wheels of the roller changing vehicle driving system, and the second supporting pieces 200 are used for contacting with the bottom side of a reduction gearbox of the roller changing vehicle driving system; the second support 200 is defined to be positioned higher than the first support 100 such that when the second support 200 is in contact with the reduction gearbox, sufficient accommodation area is provided in the vicinity of the first support 100 for the roll changing drive system related structures to be arranged.
The replacement device will now be described in detail as follows:
the roll changing truck driving system generally comprises wheels, wheel shafts, a reduction gearbox, a motor, a chassis, a bearing seat and the like. The roll changing truck is generally moved to an overhaul platform or a support frame during overhaul, and then the replacing device of the embodiment is moved to the lower part of a roll changing truck driving system; the electric control lifting mechanism 400 acts to enable the second supporting piece 200 to contact the reduction gearbox; then dismantling the fixed bolts comprising the two sides of the wheel and the vicinity of the reduction gearbox, so that the roller changing vehicle driving system is separated from other mechanisms of the roller changing vehicle; then the electric control lifting mechanism 400 acts again to enable the roller changing vehicle driving system to descend along with the second supporting piece 200, so that the roller changing vehicle driving system is spatially separated from other mechanisms; the roll changing truck driving system is subsequently moved away from the other roll changing truck mechanisms under the operation of the traveling driving mechanism 500 and integrally moved out, thereby providing an advantageous maintenance space.
The replacing device also specially provides two first supporting pieces 100 for the wheels of the roller changing vehicle driving system, specifically, a vertical through hole 110 for accommodating the wheels is formed in the first supporting piece 100, the first supporting piece 100 is matched with the second supporting piece 200 to provide a sufficient supporting surface area for the roller changing vehicle driving system, and the replacing device has the advantages of stable movement and high reliability.
To sum up, through this change device, overcome originally because the structure is complicated and adopt the chain to hoist and mount the defect that the operation time that the transportation exists is long, the potential safety hazard is big of transporting repeatedly, have convenient maintenance and advantage that work efficiency is high, still reduced personnel's input, reduced the incident risk that personnel's overfatigue probably leads to again, improved the operation security.
Alternatively, referring to fig. 2, the traveling driving mechanism 500 includes a driving motor 510, an umbrella-shaped tooth 520 and a transmission shaft 530, wherein the driving motor 510 is mounted on the third supporting member 300, the umbrella-shaped tooth 520 is in driving connection with the driving motor 510, the transmission shaft 530 is in meshed connection with the umbrella-shaped tooth 520, and the transmission shaft 530 is in driving connection with the pair of third traveling wheels 310. The umbrella-shaped teeth 520 are driven to rotate by the driving motor 510, so that the transmission shaft 530 is driven to drive the third travelling wheel 310 to rotate, and the replacement device integrally moves in cooperation with the first travelling wheel 120.
In some embodiments, as shown in fig. 2, a drive shaft 530 is drivingly connected to the two third road wheels 310 at the bottom rear end of the third support 300, and the two third road wheels 310 at the bottom front end of the third support 300 and the first road wheel 120 on the first support 100 act as driven wheels.
Alternatively, as shown in fig. 1, the electrically controlled lifting mechanism 400 includes a hydraulic jack 410, wherein the bottom end of the hydraulic jack 410 is mounted on the third support 300, and the top end is fixedly connected with the second support 200. The expansion and contraction of the hydraulic jack 410 is controlled by an electric control manner, thereby controlling the elevation and the lowering of the second support 200, and achieving the intended purpose.
The electrically controlled lifting mechanism 400 may take other forms such as an air cylinder.
Optionally, as shown in fig. 1, the electrically controlled lifting mechanism 400 further includes a base 420 mounted at the bottom of the hydraulic jack 410, the base 420 is mounted on the third support 300, and the structural strength of the hydraulic jack 410 and the third support 300 is enhanced by configuring the base 420.
Optionally, as shown in fig. 1 and 2, the replacing device is further provided with a pulley assembly 600, both sides of the second support member 200 are respectively connected with the two first support members 100 through the pulley assembly 600, thereby realizing the arrangement that the second support member 200 is connected between the two first support members 100, and the second support member 200 is consistent with the movement of the first support members 100 in the traveling direction through the pulley assembly 600.
Alternatively, as shown in fig. 1 and 2, the pulley assembly 600 includes a first bracket 610, a first fixed pulley 620, a second bracket 630, a second fixed pulley 640, and a rigid link 650, the first bracket 610 is fixedly mounted on the first support 100, the first fixed pulley 620 is mounted on the first bracket 610, the second bracket 630 is fixedly mounted on the second support 200, the second fixed pulley 640 is mounted on the second bracket 630, and both ends of the rigid link 650 are rotatably connected with the first fixed pulley 620 and the second fixed pulley 640, respectively.
By arranging the pulley assembly 600, when the second supporting plate is driven to lift by the electric control lifting mechanism 400, the second fixed pulley 640 can be changed in height, and the disadvantage of dead motion is avoided by arranging the fixed pulley.
Optionally, as shown in fig. 2, the horizontal cross section of the vertical through hole 110 is rectangular, and the horizontal cross section of the vertical through hole 110 is larger than the horizontal cross section of the wheel, that is, the wheel can be placed in the vertical through hole 110 smoothly, so that the placement stability of the roller changing vehicle driving system on the replacing device is better realized.
Alternatively, as shown in fig. 2, the first supporting members 100 are each provided with a first drawing hole 130 at the front end; and/or, the third support 300 is provided at the front end with a third drawing hole 320. By providing the drawing hole, when the travel drive mechanism 500 fails, smooth movement of the replacement device can be ensured by, for example, attaching the chain block to the drawing hole to draw.
Example 2
Based on the replacement device for a roll changing truck driving system of embodiment 1, the present embodiment provides a replacement method for a roll changing truck driving system, including:
lifting the roller changing truck to an overhaul platform, and moving the replacing device to the lower part of the overhaul platform;
after the replacing device is moved below the maintenance platform, the second supporting piece 200 is propped against a reduction gearbox of the roller changing vehicle driving system through the electric control lifting mechanism 400;
after the second supporting piece 200 is propped against the reduction gearbox, the roller changing vehicle driving system is detached from other mechanisms of the roller changing vehicle;
after the roll changing truck driving system is disassembled, the second supporting piece 200 is lowered through the electric control lifting mechanism 400, the roll changing truck driving system is lowered, and wheels of the roll changing truck driving system are lowered to the vertical through holes 110 of the first supporting piece 100;
after the roll changing truck driving system falls, the traveling driving mechanism 500 works to move the replacing device and the roll changing truck driving system away from the maintenance platform.
The replacement method is applied to overhauling the driving system of the roller changing truck, overcomes the defects of long operation time and large potential safety hazard existing in hoisting and transporting by repeated operation of the chain block due to complex structure, has the advantages of convenient overhauling and high working efficiency, reduces personnel investment, reduces the risk of safety accidents possibly caused by excessive fatigue of personnel, and improves the operation safety.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (10)
1. A changing device for a roll changing truck drive system, the changing device comprising:
the two first supporting pieces are arranged at intervals, vertical through holes for accommodating wheels of the roller changing truck driving system are formed in the two first supporting pieces, and a plurality of first travelling wheels are arranged at the bottoms of the two first supporting pieces;
the second supporting pieces are connected between the two first supporting pieces and are higher than the first supporting pieces, and the second supporting pieces are used for being in contact with the bottom side of the reduction gearbox of the roller changing vehicle driving system;
the third supporting pieces are arranged below the second supporting pieces at intervals, and a plurality of third travelling wheels are arranged at the bottom of the third supporting pieces;
the electric control lifting mechanism is vertically connected between the second supporting piece and the third supporting piece; and
and the walking driving mechanism is arranged on the third supporting piece and used for driving at least one pair of third walking wheels to walk.
2. The changing apparatus of claim 1, wherein the travel drive mechanism comprises:
a driving motor mounted to the third support;
umbrella-shaped teeth which are in driving connection with the driving motor; and
and the transmission shaft is meshed with the umbrella-shaped teeth and is in transmission connection with the pair of third travelling wheels.
3. The changing apparatus of claim 1, wherein the electrically controlled lifting mechanism comprises a hydraulic jack, a bottom end of the hydraulic jack being mounted to the third support member, and a top end of the hydraulic jack being fixedly connected to the second support member.
4. The changing device according to claim 1, characterized in that it is further provided with a pulley assembly, by means of which pulley assembly the two sides of the second support member are connected to the two first support members, respectively.
5. The changing apparatus of claim 4, wherein the pulley assembly comprises:
the first bracket is fixedly arranged on the first supporting piece;
the first fixed pulley is arranged on the first bracket;
the second bracket is fixedly arranged on the second supporting piece;
the second fixed pulley is arranged on the second bracket; and
and two ends of the rigid connecting rod are respectively and rotatably connected with the first fixed pulley and the second fixed pulley.
6. The changing apparatus of claim 1, wherein the vertical through-hole has a rectangular configuration in horizontal cross section and a dimension greater than the horizontal cross section of the wheel.
7. A changing apparatus according to claim 3, wherein the electrically controlled lifting mechanism further comprises a base mounted to the bottom of the hydraulic jack, the base being mounted to the third support member.
8. The changing apparatus of claim 1, wherein the first support members are each provided with a first pulling hole at a front end.
9. The exchange device according to claim 1, wherein the third support member is provided with a third drawing hole at a front end.
10. A replacement method for a roll changing truck drive system, comprising the replacement apparatus of any one of claims 1-9, the replacement method comprising:
lifting the roller changing truck to an overhaul platform, and moving the replacing device to the lower part of the overhaul platform;
after the replacing device is moved below the overhauling platform, the second supporting piece is abutted against a reduction gearbox of the roller changing truck driving system through the electric control lifting mechanism;
after the second supporting piece abuts against the reduction gearbox, the roller changing vehicle driving system is detached from other mechanisms of the roller changing vehicle;
after the roll changing truck driving system is disassembled, the second supporting piece is lowered through the electric control lifting mechanism, the roll changing truck driving system is lowered, and wheels of the roll changing truck driving system are lowered to the vertical through holes of the first supporting piece;
after the roller changing truck driving system falls down, the walking driving mechanism works, so that the replacing device and the roller changing truck driving system move away from the lower part of the maintenance platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210711065.1A CN114988327B (en) | 2022-06-22 | 2022-06-22 | Replacement device and replacement method for roller changing vehicle driving system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210711065.1A CN114988327B (en) | 2022-06-22 | 2022-06-22 | Replacement device and replacement method for roller changing vehicle driving system |
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| Publication Number | Publication Date |
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| CN114988327A CN114988327A (en) | 2022-09-02 |
| CN114988327B true CN114988327B (en) | 2023-06-30 |
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| CN202210711065.1A Active CN114988327B (en) | 2022-06-22 | 2022-06-22 | Replacement device and replacement method for roller changing vehicle driving system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4329864A (en) * | 1980-08-11 | 1982-05-18 | Wean United, Inc. | Apparatus for changing rolls in vertical rolling mills |
| SU1026862A1 (en) * | 1980-10-08 | 1983-07-07 | Научно-Исследовательский Институт Тяжелого Машиностроения Производственного Объединения "Уралмаш" | Power nut driver of mechanism for changing rolling roll chucks |
| US4949447A (en) * | 1988-06-30 | 1990-08-21 | Danieli & C. Officine Meccaniche Spa | Apparatus to replace sets of rolls and relative equipment in rolling stands having rolls supported as cantilevers |
| DE102010001742B3 (en) * | 2010-02-10 | 2011-05-12 | Koenig & Bauer Aktiengesellschaft | Rotational drive for support arm spindle of roll changer, has drive shaft, gear and output shaft driving pivot axis of support arm spindle, where gear has driving toothed wheel with external teeth |
| CN210676361U (en) * | 2019-10-11 | 2020-06-05 | 二重（德阳）重型装备有限公司 | Rail lifting device for roll changing of rolling mill |
-
2022
- 2022-06-22 CN CN202210711065.1A patent/CN114988327B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4329864A (en) * | 1980-08-11 | 1982-05-18 | Wean United, Inc. | Apparatus for changing rolls in vertical rolling mills |
| SU1026862A1 (en) * | 1980-10-08 | 1983-07-07 | Научно-Исследовательский Институт Тяжелого Машиностроения Производственного Объединения "Уралмаш" | Power nut driver of mechanism for changing rolling roll chucks |
| US4949447A (en) * | 1988-06-30 | 1990-08-21 | Danieli & C. Officine Meccaniche Spa | Apparatus to replace sets of rolls and relative equipment in rolling stands having rolls supported as cantilevers |
| DE102010001742B3 (en) * | 2010-02-10 | 2011-05-12 | Koenig & Bauer Aktiengesellschaft | Rotational drive for support arm spindle of roll changer, has drive shaft, gear and output shaft driving pivot axis of support arm spindle, where gear has driving toothed wheel with external teeth |
| CN210676361U (en) * | 2019-10-11 | 2020-06-05 | 二重（德阳）重型装备有限公司 | Rail lifting device for roll changing of rolling mill |
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| Publication number | Publication date |
|---|---|
| CN114988327A (en) | 2022-09-02 |
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